Stop stitching together a dozen vendor SDKs. Arch Tools puts 63 production tools behind one key and one base URL — discoverable by MCP, OpenAPI, llms.txt, and x402, so agents can find, call, and pay for tools without a human in the loop.
POST /v1/tools/{name} with a Bearer key. OpenAPI 3.1 spec at /openapi.json.
Remote connector at https://archtools.dev/mcp for Claude, Cursor, ChatGPT — see MCP server.
No key at all — agents pay per call in USDC on 9 chains. See x402 API.
LangChain integration guide, SDKs, and a live playground.
Real tools with published prices — advertised price is always the charged price.
web-search, scrape, extract-page, fact-check, research-report, news, PDFs, screenshots, WHOIS, IP lookup…
Live prices, OHLCV candles, market cap ranks, sentiment, fear & greed, crypto news — from 1 credit.
Claude text generation, summarize, NER, PII detection, image/video generation, OCR, TTS, Whisper transcription.
Validation, format conversion, JSONPath, hashing, UUIDs, QR codes, email find/verify/send, phone validation.
# 1. Get a key (25 credits usable instantly, 100 total on verify)
curl -X POST https://archtools.dev/v1/agent/register \
-H "Content-Type: application/json" \
-d '{"name":"my-agent","email":"[email protected]"}'
# 2. Call any tool
curl -X POST https://archtools.dev/v1/tools/web-search \
-H "Authorization: Bearer YOUR_API_KEY" \
-H "Content-Type: application/json" \
-d '{"query":"latest MCP spec changes"}'Agent-readable docs: llms.txt · llms-full.txt · x402 discovery.